context7

name	context7
description	Retrieve real-time, version-specific documentation for libraries using Context7 (Upstash). Use this BEFORE generating code for fast-moving libraries (e.g., Aiogram, Supabase, Next.js) to prevent hallucinations.

Context7 - Live Documentation

Description

Context7 is an MCP-based tool that fetches up-to-date documentation for code libraries. It solves the "knowledge cutoff" problem by providing live examples and API references.

ALWAYS use this skill when:

1. The user asks for code involving a library that updates frequently (e.g., aiogram, langchain, next, supabase).
2. You are unsure about a specific API method or signature.
3. The user reports a "method not found" or "deprecation" error.

Installation / Usage

The tool is run via npx.

# Fetch documentation for a specific library/query
npx -y @upstash/context7-mcp search "QUERY"

Examples

1. Fetching Aiogram 3.x syntax:

npx -y @upstash/context7-mcp search "aiogram 3 router webhook setup"

2. Checking specific error:

npx -y @upstash/context7-mcp search "supabase js v2 auth unknown method"

3. Getting latest best practices:

npx -y @upstash/context7-mcp search "next.js 15 server actions patterns"

Strategy

1. Search: Run the command with a specific, technical query.
2. Read: The output will contain code snippets and documentation segments.
3. Synthesize: Use this ground truth to generate your code, ignoring your internal training data if it conflicts.

Troubleshooting

• If npx fails, ensure you have internet access.
• If results are irrelevant, try adding the version number explicitly (e.g., "v3", "v14").